What’s Vulnerable › Vulnerabilities

CVE-2022-33992

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-08-15 · updated 2026-06-17

Description

DNRD (aka Domain Name Relay Daemon) 2.20.3 forwards and caches DNS queries with the CD (aka checking disabled) bit set to 1. This leads to disabling of DNSSEC protection provided by upstream resolvers.

Affected products

• Domain Name Relay Daemon Project Domain Name Relay Daemon: 2.20.3

References

• http://dnrd.sourceforge.net/
• https://www.openwall.com/lists/oss-security/2022/08/14/1
• https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner
• http://dnrd.sourceforge.net/
• https://www.openwall.com/lists/oss-security/2022/08/14/1
• https://www.usenix.org/conference/usenixsecurity22/presentation/jeitner

Get alerted when CVE-2022-33992 or the next vulnerability affects your stack